Help with A Level Maths

Can anyone help my daughter who is doing A Level Maths with NEC? She has soared through the course so far and is very disciplined, combining a full time job and study. However, she has hit a snag half way through Mechanics 1 ... this is an occasion when the examples given don't go far enough to work out the question. She doesn't need regular tuition, just occasional help. If you live in SE1 and can help out when needed, please PM me with hourly rate and contact details. Thanks!